Ritesh, I disagree to what you have written above. Firstly on your first statement, sex and sexual drive are two different things, they are inter related, but not same. Sex is possible without the sexual drive also, and sexual drive can be there in any individual who is not being part of a sexual activity. Depression is a very wide time, and its causes multifarious, actually I do not know in particular which stream of study you are from, but depression has uncountable reasons. Regarding maniacs and perverts if we are talking, as you mentioned " it leads to chronic depressions & in worst forms it projects as sexual crimes of heinous nature which cause an immediate threat to social order ", this happens not because of depression but instead coz of hormonal imbalances in those persons, and the imbalances can be genetic also, being carried from generation to generation. It depends on the kind of diet, company, friends, the environment one is exposed to during teens, especially during puberty, the kind of literature one reads and so on..........If libidinal energy is not channelized properly, its then that people especially in males, that they become violent or they resort to sexual crimes. Whatever, I have written here is what I have read in this regard, and the knowledge I carry after reading various books. The contemporary theories which have come up in last 10 years, I am not aware of those. Ritesh, you have also talked of libido and that it causes disorders in society. I think it is always better to look at the question from as many point of views as you can, sociological, psychological/psychoanalytic, philosophical, and if one can go deep, the existential approach & so many others. Ritesh, I am asking this question the second time, would you like to share what genre you are studying? The kind of questions which generate in your mind, have some roots somewhere? You have lot of inhibitions? World is not so bad, girls should be more worried in the current scenario !!